Yes! Piano, Clarinet, and Voice. I can kick anyone's ass on sight reading vocal music, but I've gotten pretty weak at my piano sight reading skills. I tend to play by ear nowadays, which also comes very easy for me.
And I love Mike to DEATH, and his musical ear and genius, but no matter how much he thought it was "unnecessary" for him to be able to read music...I bet you if he did learn, his genius would have exploded even more so! In the end, those little musical notes are the words for which we use to musically speak to one another. Just as words are for books and reading, notes are for playing and singing. It's our musical literacy.